GSD is the culmination of Dumas Paris' research in terms of improving comfort and optimizing product safety. This patented concept of the double shell allows to stop and to block the contamination resulting from the migration of mites and allergens.

The outer shell is an untreated textile which guarantees the comfort of a hypoallergenic contact. The inner liner receives a specific treatment and serves as a barrier to the harmful elements. This treatment contains a biocidal product SANITIZED® PL21-60 in compliance with EU requirements No. 528 / 2012. The two envelopes work in synergy to ensure maximum comfort and safety for humans and their environment.

The GSD label on the packaging indicates that your product benefits from this technology.

Two duvets to form one: a summer duvet and a mid-season duvet interlinked by links to form the winter duvet. One ensures comfort and lightness for the summer nights and the other gives you an enveloping welcome for the mid-season. These two quilts joined by cotton ties, bring the ideal heat level for the winter season. This synthetic duvet can adapt to all seasons and all regions of the world.

Composition The summer duvet and the inter-season duvet are filled in 100% microfiber. The outer shell is a down-proof satined cotton, 140 threads/cm². The summer duvet has a grammage of 200 g/m², it will be perfect for the warm seasons. Te inter-season duvet has a weight of 300g/m² and will therefore be neither too hot nor too cold at the exit and at the beginning of winter. Together, the duvets create a warm cocoon for the winter. These quilts have a satin stitch finish, the strongest stitching possible. An anti-mite and anti-bacterial treated non-woven lining, exclusive to GSD®, can be applied to the duvet.

Packaging The duvet is delivered in a protective Dumas Paris canvas bag which you can use to store the duvet during the hottest months of the year. You can also use the bag for leisure and travel.

Tailor-made and embroidery Available in standard French sizes, the Alliance All Seasons synthetic microfiber duvet can be tailor-made and personalized with an embroidery on demand. The manufacturing time for special dimensions is 10 days. Special sizes and personnilised duvet are not taken back or exchanged.

Delivery and returns Your bedding item will be shipped in 48 to 72h at your home or in relay point. Delivery in France is free. You have 14 days to return or exchange the product if it does not meet your expectations. Any tailor made product (embroidery, specific size) will not be taken back or exchanged and will require 5 working days of manufacturing time.

Cleaning proccess This duvet is machine washable using your usual detergent. Use a delicate cycle at 40°C or equivalent. Do not bleach.

Dumas Paris offers Haute Literie® products, the only label to guarantee the luxury of bedding products. Benefiting from know-how handed down over five generations, Dumas Paris has been able to reinvent itself over the years to offer innovative products. Dumas Paris guarantees a level of quality unchanged since 1910, making it the mark of the trusts of the largest hotels around the world.